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Small Batch Blackberry Jam

I am really starting to appreciate small batch jam making. We are just too busy lately for me to be able to devote an entire day to jam making and canning, and honestly, while it is nice to have a large supply of jams and jellies on hand I really don’t need 10 jars of one variety.

Small Batch Blackberry Jam

I made this Small Batch Blackberry jam pretty quickly and easily the same day I made Blackberry pie and froze blackberries, all before we headed to the beach for the afternoon. In fact, I made the jam the same time I was baking the pie.

I made my jam in a 10-inch stock-pot because it had a large surface area and a relatively small volume of jam,  it cooked down much more quickly than a standard jam recipe. It is easier to get the jam to 220° degrees in smaller batches, so you can often skip the addition of pectin. One of my favorite things about small batch jam making is the shorter cook time creates a jam with outstanding color.  I mean this blackberry jam had a beautiful glowing color. Yes, past-tense we ate it all already.  In hindsight canning this jam was a waste of time, stored in the fridge, this jam will keep approximately 2 weeks, that is if your family doesn’t devour it within a matter of days like mine did 🙂

Eat it on a fresh homemade muffin, and you’ll know why ours disappeared so quickly.

Small Batch Blackberry Jam

Small Batch Blackberry Jam

Yield: 2 jars
Prep Time: 15 minutes
Cook Time: 30 minutes
Total Time: 45 minutes

Ingredients

  • 4 cups mashed blackberries
  • 2 cups of sugar
  • 1 lemon, zested and juiced

Instructions

  1. Combine the mashed berries and sugar, cover and let macerate in the refrigerator for 2-24 hours.
  2. When you're ready to make jam, pour the macerated berries into a medium-sized non-reactive pan. Bring to a boil and let the jam bubble, stirring regularly, until it reduces and develops a syrup-y look.
  3. Using a candy thermometer, monitor the cooking jams temperature. When it reaches 220 degrees, remove it from the heat. If you don't have a thermometer, use the plate test to test the jam's doneness. To test the jell stage of the jam using plates, put a couple of small plates or saucers into the freezer before you begin to the make the jam. When you're ready to test your set, pull one of the plates out and drop a small dollop of jam onto the center. Let it sit for a minute or two. If the jam is ready, it will develop a thin skin that will wrinkle when gently nudged. If it just runs all over the plate, it needs a few more minutes of cooking.
  4. When jam has reduced down and is finished cooking, remove from heat and add the lemon juice and zest, stir to incorporate. Ladle into prepared jars, wipe rims, apply lids and rings and process in a boiling water canner for 15 minutes, if desired. This jam will keep for a couple of weeks in the fridge without processing.

Notes

Cooking time will vary depending on the size of the pan.

Recipe Source: Mrs. Wages

Small Batch Blackberry Jam
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Madonna Porter

Sunday 10th of May 2020

Can you use wax to seal the jars??

James

Friday 24th of August 2018

Why did mine come out so runny?

DeMarcy

Saturday 11th of August 2018

I don't have lemon! What will happen if I skip this step?

Megan

Saturday 23rd of June 2018

Hi there- with the blackberries, do you mash them first to make 4 cups or is it just 4 cups of blackberries that are then mashed? Thanks!!

Jennifer Morrisey

Saturday 23rd of June 2018

Hi Megan, Mash the blackberries first and measure out 4 cups. I went ahead an updated the recipe so the instructions are a little clearer. I hope you enjoy the jam!

Casper

Thursday 14th of June 2018

Just finished my jam...Dee..licious.Didn't water bathe it...went in the frig.(the Jam, not me)Left a bit in the pot to smear on a piece of toast. Thanks so much

Jennifer Morrisey

Saturday 23rd of June 2018

I am so glad you enjoyed the jam!